Obviously because we think it will result in a better future outcome than if we didn't. We'd have tons of cash and we could do all of the things that we feel we can't do now dummy! But we hear it time and again, it ruins many people's lives. Watch the video and think about it. Think about the other things we think we want, and think will bring joy. Free energy, self-driving cars, etc.Self driving cars is happening, free energy could take some time. But if we had free energy would that mean world peace, or would it mean we could destroy the earth faster? Could we mine more, produce more, create more garbage? And these self driving cars, are people going to be able to chat and hang out while going somewhere, or are they going to allow parents to not even have to take their kids to baseball practice? Or create more pollution, ... or things far worse. Just try to think things through a bit more, try to figure out what you should really hope for.